Built-up-standing-column pump



"April 22, 1930.

P. H. BRAY 7 1,755,421

BUILT-UP STANDING COLUMN PUMP Filed April 1, 1929 INVENTOR,

ATTORNEYS.

Patented Apr. 1930 arts,

PATRICK H. EBAY, F LONG BEACH, CALIFORNIA BUILT-UP STANDING- COLUMN PUMP Application filed April 1, 1929. Serial No. 351,559.

This invention relates to pumps and particularly to deep well pumps of the class including a standing valve mounted on the head of a standing, pullable column whose foot is detachably locked in a casing shoe.

' In such pum s the standing column is provided with pac ing on which works a pump barrel by action of a sucker rod.

A very efiective pump of this class is shown in my application executed on Oct. 23, 1928, and filed February 4:, 1929, S. N. 337 ,340. In that pump packing bodies were interspaced with metal bearing guides along a central tubular stem. 7

A purpose of the present invention is to increase the pumping capacity of this class of pump and provide a highly effective packing and obtain long life of all relatively working parts.

The present improvements particularly reside in the construction and assembly of the central stem of the column, and the associated guides and packing bodies.

Other objects, advantages and details of construction and the combination and mode of operation will be made manifest in the ensuing description or" the herewith illustrative embodiment; it being understood that modifications, variations and adaptations may be resorted to within the spirit, scope and principle of the invention as it is hereinafter claimed.

Figure 1 is an axial section of the pump.

Figure 2 is an elevation of the upper nipple of the stem.

Figure 3 is, an elevation of the lower nipple ofthe stern.

Figure 1 is a plan of a guide, and

Figure 5 is a side view thereof.

Figure 6 is a bottom plan of barrel foot bushing.

The pump is shown as assembled in the usual pump tubing T having a suitable lock meansL to detachably look a shoe pin l. This pin has acoupler head 2 to be non-rotatively interlocked with a complementary part 3 screwed on the foot of a travelling barrel B. The part B is inthe form of a bushing having side jaws lto intermesh with the fiat-side head 2 of the pin 1?", when desired.

The bushing 3 is provided with liquid jet ducts 5 as set forth in said application,

The upper part of the barrel is provided. with the usual head valve V to the cage of which the sucker rod is adapted to be attached.

Within the barrel B is a standing valve S which is screwed on the upper end of a builtup stem or column forming a feature of the invention.

The lower end of the built-up stem or column screws into apipe section 19 which screws into the lock pin P.

On the pipe section 19 is a collar 20 which screws onto the stem part 15 and jams one or more bronze, cylindrical guides 21 against the ledge or head 18.

Resting on the guide 21 which is next to the stop ledge is a coil spring 22 on which rests a washer 23 supporting a body of packing material 2d. The spring acts to press the packing up on the cone part 17 and this serves to expand the packing snug to the wall of the travelling barrel B.

A washer 25 rests against the flange or shoulder 16 and prevents the packing from slipping by.

The upper stem 10 is removable from stem 15 for the purpose oi assembly of an upper body of packing 26 which is thrust upward to shoulder 11 by a spring 27 resting on the shoulder 16.

standing valve S. The cylindrical rigid. hearing guid sides 21 not only form a means on whieh the trav elling barrel works but further have oil-pack grooves 21 with oblique edge .lips which serve to wipe the'barrel wall and to collect a body ofoil to form an oil seal effect against slippage of fluid.

The direction of the grooves 21 of the upper guide 21 is upward and of the lower guides is downward so that their action is effective on reverse strokes of the barrel.

It will be seen that the foot bushing 3 of the barrel may have a free running relation to the pipe 19 since the guides 21 and the packing bodies 24-26 form the bearing and guide for the working barrel; the metal.

guides providing long life of parts and the packing aiding in eliminating fluid escape.

The sectional column 10-15 is the direct support for the packing body as shown in my Patent #1,636,935 (Green) and eliminates use of sleeves as shown in said ap lica-tion thus enabling provision of a larger ow passage up through the stem and greater pump capacity.

When the pump is to be pulled the bushing engages the collar 12 and further upward action pulls the pin P from its lock L.

What is claimed is:

1. In a deep well pump a built-up stem structure including upper and lower tubular sections for fluid flow and bein separably attached, spaced guide and pac 'ng cylinders mounted on the several sections of said stem, and spaced bodies of packing mounted on respective sections of the stem.

2. In a deep well pump a stem structure including upper and lower tubular sections for fiuid flow and being separably attached, spaced guide cylinders mounted on said stem, spaced bodies of packing mounted on the stem; and spring means resting on contiguous parts and reacting on respective packing bodies and cooperating with the guides to pack a barrel.

3. In a deep well pump a built-up stem structure including a series of connected stern sections provided with shoulder parts, a series of packing and guide cylinders secured on respective of the sections for bearing with a relative pump element, and packing bodies mounted along the stem.

fl. In a deep well pump an upper central nipple having threaded ends and an inter mediate annular shoulder from which a conical part convergesdown to the stem, :2. lower nipple having a top shoulder forming a seat and attached to the upper nipple and having a conical part converging down to the nipple body, an intermediate bead shoulder on the lower nipple, bodies of packing material on said cone parts, spring means forcing said packing toward the larger ends of the cone parts, and metal guide cylinders fixed stem for bearing with a cooperative pump barrel.

5. in deep well pump. a

ment in a relative barrel.

PATRICK H. EBAY. 

